Difference between revisions of "Prototype/Technology"

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  [[-Prototype property name::icons.2C_icon.2C_icon_size_.28IconSpecification.29]]<!-- update this if there are more non tech data properties in the future -->
  |?Prototype property name
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  |?Prototype property type
  |?Prototype property type

Revision as of 19:04, 6 August 2019

Prototype definitions » PrototypeBase » Prototype/Technology

A technology.

Prototype/Technology — technology
icons, icon, icon_size (IconSpecification)::IconSpecification
#Technology data
icons, icon, icon_size (IconSpecification)::IconSpecification
effects::table of Types/ModifierPrototype (optional)
enabled::bool (optional)
expensive::Technology data or bool (optional)
hidden::bool (optional)
ignore_tech_cost_multiplier::bool (optional)
max_level::uint32 or string (optional)
normal::Technology data or bool (optional)
prerequisites::table of string (optional)
upgrade::bool (optional)
visible_when_disabled::bool (optional)
Inherited from PrototypeBase
localised_description::LocalisedString (optional)
localised_name::LocalisedString (optional)
order::Order (optional)

General properties

Inherits all properties from PrototypeBase.

icons, icon, icon_size (IconSpecification)

Type: IconSpecification


See PrototypeBase#name

Inherited from PrototypeBase. If the name ends with -number, the number is ignored for localization purposes. E. g. if the name is whatever-name-3, the game looks for the technology-name.whatever-name localization. The technology tree will also show the number on the technology icon.

Technology data

If the technology does not have a difficulty, this is located directly in the prototype. Otherwise, if the "normal" or "expensive" property exists, the technology has difficulty. Then, the technology data has to be specified for each difficulty instead of directly in the prototype. If at least one difficulty has technology data defined, the other difficulty can be set to false. This will give it the exact same properties as the difficulty that is defined.


Type: bool
Default: false
When set to true, and the technology contains several levels, only the relevant one is displayed in the technology screen.

    type = "technology",
    name = "physical-projectile-damage-2",
    upgrade = "true"


Type: bool
Default: true


Type: bool
Default: false
Hides the technology from the tech screen.


Type: bool
Default: false
Controls whether the technology is shown in the tech GUI when it is disabled (enabled = false).


Type: table
table with the following key/value pairs:

  • count — double — How many units are needed. Must be positive. May not be specified if count_formula is specified.
  • count_formula — string — Formula that specifies how many units are needed per level of the infinite technology. May not be specified if count is specified. The formula is executed following the BODMAS order.
Supported operators & characters:
Operator meaning
+ Addition
- Subtraction
* Multiplication
^ Power, raise the preceding base number by the following exponent number
() Brackets for order, supported nested brackets
l or L The current level of the technology
Digits Are treated as numbers
. Decimal point in number
SPACE Space characters are ignored
  • time — double — How much time is needed per one unit, in lab with crafting speed 1 it is the number of seconds.
  • ingredients — table of IngredientPrototype — list of ingredients needed for one units
unit =
  count_formula = "2^(L-6)*1000",
  ingredients =
    {"automation-science-pack", 1},
    {"logistic-science-pack", 1},
    {"chemical-science-pack", 1},
    {"production-science-pack", 1},
    {"utility-science-pack", 1},
    {"space-science-pack", 1}
  time = 60


Type: uint32 or string
Default: Same as the level of the technology, which is 0 for non-upgrades, and the level of the upgrade for upgrades.
"infinite" for infinite technologies, otherwise uint.


Type: table of string
List of technologies needed to be researched before this one can be researched.

 prerequisites = {"explosives", "military-2"}


Type: table of Modifier
List of effects of the technology (applied when the technology is researched).

    type  = "unlock-recipe",
    recipe = "land-mine"